Marinate - You marinate a fish before cooking.
maar-i-nii-ya-t - Lead a kill with a purpose.
maaR - Root for killing is 'mR', and next grade sounds are 'mar', and 'maar'.
i - joining vowel after a consonant. "Ri" is a vowel but "ar" is a consonant sound.
nii - root for 'to lead'.
ya - to make it a Causative Verb
at - to make it Present Participle.